Best Way to Fix Windows Stop Error 0x00000021

In your Windows computer, you will get Windows stop error 0x00000021 sometimes. The error mainly comes to your computer when you try to start or open any program or applications. The BSOD error 0x00000021 in Windows comes due to bad boot sector or due to installation of the corrupt or infectious files or applications. After the occurring of this error, you get so many symptoms like occurring of the blue screen of death error on the computer screen, unable to open or start any program, etc. You can go through some manual or automatic error fixing methods to fix Windows stop error code 0x00000021. You can also download and install Advanced System Repair tool in the computer to get rid of the issue automatically.


Compatible with the Windows 8 32-bit and 64-bit Operating System, Windows 7 32-bit and 64-bit Operating System, Windows Vista 32-bit and 64-bit, Windows XP 32-bit
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Some common symptoms:

Common symptoms you may see in the computer are automatic shutdown, slow performance of the computer, unable to install or uninstall any programs or applications, unable to open or start the program, severe data loss, occurring of the blue screen of death error on the computer screen, etc.

Causes of Windows stop error 0x00000021:

  • Virus infections
  • Missing DLLs
  • Bad boot sector
  • Improper partitioning
  • Corruption in the hard disk
  • Conflicts among the installed apps
  • Installation of corrupt or infectious files

How to fix Windows stop error code 0x00000021: You can remove BSOD error 0x00000021 in Windows with the help of some manual or automatic error fixing methods. The manual method will help you to get rid of the problem but you need to have a sound technical knowledge for it;

  1. Click on the start button.
  2. Click on run and type msconfig and press Enter button.
  3. Click on the services tab.
  4. Here Hide All Microsoft services should be checked.
  5. Click on Disable All and then click on Apply.
  6. Click on the startup tab.
  7. Click on open Task Manager.
  8. Disable all the options and then close the Task Manager.
  9. Now click on the OK to close system configuration window.
  10. Restart the computer.

With the help of the above manual method, you will fix Windows stop error 0x00000021 properly. But if the issue is not fixed and you are getting the errors again and again, you must download and install Advanced System Repair tool in the computer to get rid of the issue.


Compatible with the Windows 8 32-bit and 64-bit Operating System, Windows 7 32-bit and 64-bit Operating System, Windows Vista 32-bit and 64-bit, Windows XP 32-bit
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Advanced System Repair tool will start working just after the launching. It will find out all the errors and remove them automatically. The tool will also find out the virus, malware, Trojan files and other infectious files to remove. It will repair the registry and system files also and enhance the computer performance.